For the class Principals of Engineering (PoE), Evan New-Schmidt and I made a 3D scanner using two servo motors and an infrared distance sensor.
This was a two-person project for 1.5 weeks.
The final iteration of the hardware of the 3D scanner
The most interesting part of the first PoE labs was learning how to work on a small team, regarding project management and toolchains. I had been frustrated with the Arduino IDE for quite a while, so I set up a compiling toolchain with platformio. This way each team member can use their preferred text editor, and it made setting up a new project easy.
The first three labs I gained valuable teaming and product management experience.